Automobile door hinge



H. J. MASTENBROOK. AUTOMOBILE DOOR HINGE. APPLICATION FILED DEc.1o, 1919.

1,42%308, Patented Aug. 29, 1922.

MED STATES PAIENT OFFICE.

HENRY J'. MASTENBROOK, OF LAKEWOOD, OHIO, ASSIGNOR TO THE COACH BUILDERS HARDWARE COMPANY, OF. CLEVELAND,

OHIO, A CORPORATION OF OHIO.

AUTOMOBILE DOOR HINGE.

To all whom it may concern:

Be it known that I, HENRY J. MAsrEN- BROOK, a citizen of the United States, residing at Lakewood, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Automobile Door Hinges, of which the following a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to an improved automobile door hinge.

It is essential in hinges of this class that the joints and cracks between the interengaging parts of the opposed plates be concealed so far as possible for the reason that, notwithstanding how thoroughly and effectun ally the hinges are painted, enameled, or otherwise coated, the .coating about these working parts becomes cracked or worn away exposing the metal to water and moisture -and resulting in its rusting, the rust accumulating about the joints or cracks and running down the side of the hinge and presenting an unsightly appearance. The concealment of the joints and cracks has been comparatively easy in cast metal hinges for the hinges could be moulded in a shape accomplishing this end, but casthinges are expensive. unduly heavy, and more or less easliy broken.

It is the purpose of this invention to pro# vide an automobile door hinge possessing the foregoing essential feature and to construct the same of sheet metal thereby rendering it cheap, convenient of manufacture, light and strong, and to design it so that the pintle may be readily removed to eX- pedite detachment of the door.

I am aware that automobile door hinges have been made of sheet metal, but none has been produced of the type to which this invention relates wherein the cracks and joints betweenl the hinge plates have been concealed.

A hinge possessing the advantages above set forth and constructed in accordance with my invention is illustrated in the drawing accompanying and forming a part hereof and wherein Fig. hinge applied to an automobile, adjacent parts of the door and body being shown; Fig. Qis a similar view of the hinge as it appears from the inside with the plates spread apart;

1 is a perspective view of the Specification of Letters Patent. Ptgntgd Aug; 29, 1922. Application med :December 1o, 1919. serial No. 343,833.

iff-i For convenience of description I shall relfer to the opposed hinge plates as the inner plate 1 and the outer plate 2, the former being designed for attachment to the pillar of the body A, and the latter to the adjacent frame member of the door B. lVhen the door is closed, the body portions of the plates 1 and 2 lie flat against each other, as shown in Figs 4 and 5, and their outer ends are turned laterally in a direction away from the door in accordance with the usual construction of hinges of this type. The outer end of the inner plate terminates in tongues, two being shown in the present instance that are shaped to form pintle encircling knuckles 5, as best illustrated in Fig. 5. The corresponding end of the outer plate -2 is wrapped about the knuckles 5 for a considerable part of their circumference, terminating therebeyond in three tongues that are shaped to form knuckles 6, one being disposed between the knuckles 5 of the former plate and the two others above and below the former knuckles, as clearly shown in Figs. 2, 3 and 6. c

To improve the appearance of the hinge,

Inlay provide top and bottom plates 8 and 9, respectively, hich are preferably integral parts of the outer plate 2 and which conceal the outer end of the inner plate when the parts are' in closed condition. The plates 8 and 9 have apertures in axial alignment with the knuckles 5 and 6' and a pintle 10 extends through these apertures and the knuckles to connect the plates in the usual manner. The withdrawal of the pintle may be initiated by driving a suitable instrument up through the aperture of the bottom plate 9 when it is desired to remove the door.

From this description it will be seen that my invention provides a hinge of simple construction, one that is cheap, attractive of appearance, andv wherein/the joints and cracks between the' interengaging parts of the opposed plates are eli'ectually concealed from view when the hinge is applied to an automobile and viewed from usual angles.

v grees The distance to which the unbroken surface of the outer plate extends about the joint between the plates is indicated in Fig. 5.

Having thus described my invention, what I claim is l. A hinge of the class described comprising opposed plates, one terminating at one end in a. series of knuckles. and the other having its end portion extended about and partially concealingsaid knuckles and terminating in knuckles interengaging those of the former plate, the latter plate having parts turned at right angles to its body portion over the end knuckles, said parts hav ing apertures in axial alignment withthe knuckles, and a pintle extending through the apertures and knuckles.

2. AL hinge of the class described comprising an inner and an outer plate, the outer end portion of the latter plate being turned about a given axis through a number of deand terminating therebeyond in knuckles that are concealed by such portion, the inner plate terminating in knuckles interengaging with those of the former plate,

top and bottom plates carried by the outer end of one of the former plates and between which the corresponding portion ol the other plate is adapted to repose when the hinge is in closed condition, said plates having apertures in axial alignment with the knuckles of the plates, and a pintle extending through said apertures and knuckles.

3. An automobile door hinge comprising a pair of sheet metal plates, one terminating at one end in a series of knuckles, the corresponding end of the other plate ex tending about and. concealing the knuckles of the first plate and itself terminating in a series of knuckles disposed between those of the first plate and being in endwise engagement therewith and having an internal diameter substantially equal to the internal diameter of the knuckles of the first plate, and a pintle extending through the knuckles of the two plates.

In testimony whereof, I hereunto aix my signature.

HENRY J. MSTENBRQOK. 

